Similar to my 6 Disc Box Puzzle
https://3dwarehouse.sketchup.com/manage/user/9f9f38ff-29be-49f1-ac72-117a1f7bcf41?itemId=1e370920-3d79-405a-931a-40af4c6b7212&nav=editmodel
with the addition of a lid to keep the solution away from prying eyes.
More build/details about the model can be found in the "External URL" link.
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